{"id":"CVE-2026-111074","revision":"36724644576a4760b042ba347d99ebba","records":[{"revision":"36724644576a4760b042ba347d99ebba","observedAt":"2026-10-26T18:35:30.824+00:00","statement":{"source":"cve-program","id":"CVE-2026-111074","aliases":[],"title":"JITServer: Pre-authentication remote Denial of Service via integer overflow infinite loop in MessageBuffer::computeRequiredCapacity()","description":"In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component is vulnerable to a pre-authentication remote denial of service. When processing the initial 4-byte length field of an incoming TCP connection, an integer overflow in `MessageBuffer::computeRequiredCapacity()` causes the receiving compilation worker thread to enter an infinite loop consuming ~100% CPU. An unauthenticated remote attacker can exploit this by opening a small number of crafted TCP connections to exhaust the entire worker thread pool, silently halting compilation services for all connected client JVMs.","state":0,"publishedAt":"2026-10-21T07:57:16.912+00:00","modifiedAt":"2026-10-26T17:57:35.098+00:00","affected":[{"ecosystem":"Vendor product","name":"Eclipse OpenJ9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Eclipse Foundation\",\n                    \"product\": \"Eclipse OpenJ9\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0.8.0\",\n                            \"lessThan\": \"0.63\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"}],"references":["https://github.com/eclipse-openj9/openj9/pull/25008","https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/940","https://gitlab.eclipse.org/security/cve-assignment/-/work_items/422"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111074","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111074","identifiers":["CVE-2026-111074"]},"retained":false,"historicalAffected":[]}],"coverage":[]}